<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<title>Insert title here</title>
	
	<script type="text/javascript" src="cacl.js"></script>
	
	
</head>

<body>
<!-- 	<form action=""> -->
		<input type="text" 		id="txt1" value="0" /> 
		<input type="text" 		id="txt2" value="0" />
		<input type="button" 	id="sm1" value="calc" onclick="cacl()"/>
		<input type="text" 		id="txt3" value="0" />
<!-- 	</form> -->
</body>

</html>